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Blender loads scripts at startup. It seems it cannot find these. The most likely reason is that the path to it has some characters Blender can't read or a file is corrupt. Here is what you can try.


Reinstall and clear all user settings.

On Windows, the directory is located at  C:\Users\USER_NAME\AppData\Roaming\Blender Foundation\Blender\2.6x. Delete this folder and reinstall Blender. See this post for more information on how to locate this directory. This can work for both portable copies and installations.

OR

When uninstalling the program, tick Remove all files (second option) to make it delete the directory and then reinstall.


Try a portable version.
Still clear the old folder from the first point. Since portable builds use the files they ship with, it should work with the files it comes with or generate new ones as needed.